Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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AN ANALYSIS OF DISCRETIZATION EFFECT OF MOMENTUM CONVECTION TERM FOR MULTI-DIMENSIONAL TWO-PHASE FLOWS

운동량 방정식의 대류항 이산화 방법이 다차원 2상 유동 해석에 미치는 영향 분석

  • Published : 2009.09.30
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Abstract

The non-conservative form of momentum equations is often used for some two-phase flow codes instead of a conservative form because of numerical convenience. Another non-conservative form, so called, a semi-conservative form can improve the numerical solution of these codes maintaining the numerical convenience. It is close to the conservative form but still maintains the feature of the non-conservative form. A semi-conservative form of the momentum equations and a non-conservative form of the momentum equations are implemented in CUPID[1] code. The numerical results of the semi-conservative and the non-conservative forms are compared against analytical solutions and the solutions of the FLUENT code that uses the conservative form. The results clearly showed that the semi-conservative form of the momentum equations provides better solutions than the non-conservative form, especially for heterogeneous two-phase flows.

Keywords

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